deepspeed.rst

..
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    Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
    the License. You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

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HfDeepSpeedConfig
-----------------------------------------------------------------------------------------------------------------------

The :class:`~transformers.integrations.HfDeepSpeedConfig` is used to integrate Deepspeed into the 🤗 Transformer core
functionality, when :class:`~transformers.Trainer` is not used.

When using :class:`~transformers.Trainer` everything is automatically taken care of.

When not using :class:`~transformers.Trainer`, to efficiently deploy DeepSpeed stage 3, you must instantiate the
:class:`~transformers.integrations.HfDeepSpeedConfig` object before instantiating the model.

For example for a pretrained model:

.. code-block:: python

    from transformers.integrations import HfDeepSpeedConfig
    from transformers import AugoModel

    ds_config = { ... } # deepspeed config object or path to the file
    # must run before instantiating the model
    dschf = HfDeepSpeedConfig(ds_config) # keep this object alive
    model = AutoModel.from_pretrained("gpt2")
    engine = deepspeed.initialize(model=model, config_params=ds_config, ...)

or for non-pretrained model:

.. code-block:: python

    from transformers.integrations import HfDeepSpeedConfig
    from transformers import AugoModel, AutoConfig

    ds_config = { ... } # deepspeed config object or path to the file
    # must run before instantiating the model
    dschf = HfDeepSpeedConfig(ds_config) # keep this object alive
    config = AutoConfig.from_pretrained("gpt2")
    model = AutoModel.from_config(config)
    engine = deepspeed.initialize(model=model, config_params=ds_config, ...)


HfDeepSpeedConfig
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. autoclass:: transformers.integrations.HfDeepSpeedConfig
    :members: